Debt - Components of Debt (Detail) In Thousands, unless otherwise specified				6 Months Ended		6 Months Ended			6 Months Ended		6 Months Ended
	Dec. 31, 2012 USD ($)	Sep. 30, 2012 JPY (¥)	Jun. 30, 2012 USD ($)	Dec. 31, 2012 Private Placement [Member] USD ($)	Jun. 30, 2012 Private Placement [Member] USD ($)	Dec. 31, 2012 U.S. Credit Facility [Member] USD ($)	Dec. 31, 2012 Unsecured bonds and term loans [Member] USD ($)	Jun. 30, 2012 Unsecured bonds and term loans [Member] USD ($)	Dec. 31, 2012 Other debt [Member] USD ($)	Jun. 30, 2012 Other debt [Member] USD ($)	Dec. 31, 2012 Overdraft loans [Member]
Debt Instrument [Line Items]
Average Interest Rate				3.59%		1.71%	1.18%				0.74%
Debt instrument maturity year minimum				2016
Debt instrument maturity year maximum				2021		2016	2013		2013		2013
Total long-term debt	$ 236,556		$ 188,647
Long-term debt	230,000		150,032	150,000	150,000	80,000	5,747	37,556	809	1,091
Overdraft loan	105,639	11,000,000	62,645
Current portion of long-term debt and short-term borrowings	115,869		104,933				5,747	37,556	809	1,059
Other short-term borrowings	3,674		3,673
Total short-term borrowings	109,313		66,318
Total debt	$ 345,869		$ 254,965